[riffraff]

true, but the conventions it has seen are the same across all similar domains not just same framework/language, copilot "picks up" the similarity.

What I mean is: if you name your modules consistently, say Operation::Object::Verb or Action::ObjectVerb or ObjectManager.doSomething it's really easy for the LLM to guess the next one, just as it is easy for a human.

Add a new file actions/users/update.rb and start typing "Act" and it may guess "class Actions::Users::Update, and start to fill in the code based on nearby modules, switch to the corresponding unit test and it'll fill it in too.

Source: we have our own in-house conventions and it seems copilot gets them right most of the time, ymmv.